<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			var check = function() {
				var name = document.getElementById("t1").value;
				if (name == "") {
					document.getElementById("s1").innerHTML = "姓名不能为空！";
					return false;
				} else {
					var d1 = document.createElement("img");
					d1.setAttribute("src", "img/ok.png");
					document.getElementById("s1").innerHTML = "";
					document.getElementById("s1").appendChild(d1);
				}

				var password = document.getElementById("t2").value;
				if (password.length < 6) {
					document.getElementById("s2").innerHTML = "密码输入有误！";
					return false;
				} else {
					var d2 = document.createElement("img");
					d2.setAttribute("src", "img/ok.png");
					document.getElementById("s2").innerHTML = "";
					document.getElementById("s2").appendChild(d2);
				}

				var old = document.getElementById("t3").value;
				if (isNaN(old) || old <= 0 || old >= 150) {
					document.getElementById("s3").innerHTML = "年龄必须为0~150！";
					return false;
				} else {
					var d3 = document.createElement("img");
					d3.setAttribute("src", "img/ok.png");
					document.getElementById("s3").innerHTML = "";
					document.getElementById("s3").appendChild(d3);
				}

				var phone = document.getElementById("t4").value;
				var reg = /^1\d{10}$/;
				if (!reg.test(phone)) {
					document.getElementById("s4").innerHTML = "手机验证失败！";
					return false;
				} else {
					var d4 = document.createElement("img");
					d4.setAttribute("src", "img/ok.png");
					document.getElementById("s4").innerHTML = "";
					document.getElementById("s4").appendChild(d4);
				}
				return true;
			}
		</script>
	</head>
	<body>
		<form action="" method="post" onsubmit="return check()">
			姓名：<input type="text" id="t1" />
			<span id="s1"></span><br>
			密码：<input type="password" id="t2" />
			<span id="s2"></span><br>
			年龄：<input type="text" id="t3" />
			<span id="s3"></span><br>
			手机：<input type="text" id="t4" />
			<span id="s4"></span><br>
			<input type="submit" />
		</form>
	</body>
</html>